Cable & pipeline work in the South Atlantic Ocean

Cable laying, pipeline and seismic operations.

in force
2
last 12 months
3
vs previous 12 (2)
+50%
since 1998
5,172

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.

In force now · 2

  1. HYDROLANT 1497/26in force2026-08-04
    Survey operations by cableship Nautilus are in progress near Angola until 22 August; wide berth requested.
    South Atlantic · Angola
  2. NAVAREA II 269/26in force2026-07-02
    Seismic survey by vessel Ramform Victory is in progress off Pointe Noire until further notice; wide berth requested.
    Pointe Noire

Longest in force

  1. NAVAREA II 269/26in force2026-07-02 · 52 d
    Seismic survey by vessel Ramform Victory is in progress off Pointe Noire until further notice; wide berth requested.
    Pointe Noire
  2. HYDROLANT 1497/26in force2026-08-04 · 19 d
    Survey operations by cableship Nautilus are in progress near Angola until 22 August; wide berth requested.
    South Atlantic · Angola

By year

98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

Other hazards in the South Atlantic Ocean

Archive · 5,170 cancelled

  1. HYDROLANT 593/002000-02-17 → 2000-02-20
    Seismic survey in progress until 19 feb by M/V geco eagle towing eight 8000 meter long cables in area bound…
  2. HYDROLANT 592/002000-02-17 → 2000-02-20
    Seismic survey in progress until 19 feb by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  3. HYDROLANT 590/002000-02-17 → 2000-02-21
    Seismic survey in progress until 20 feb by M/V western atlas towing 5000 meter long cable in area bound by…
  4. HYDROLANT 581/002000-02-16 → 2000-02-19
    Seismic survey in progress until 18 feb by M/V western kenda towing 8000 meter long cable in area bound by…
  5. HYDROLANT 574/002000-02-15 → 2000-02-17
    Seismic survey in progress until 17 feb by M/V western atlas towing 5000 meter long cable in area bound by…
  6. HYDROLANT 573/002000-02-15 → 2000-02-17
    Seismic survey in progress until 16 feb by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  7. HYDROLANT 571/002000-02-15 → 2000-02-18
    Seismic survey in progress until 17 feb by M/V geo arctic towing 9075 meter long cable in area bound by…
  8. HYDROLANT 569/002000-02-15 → 2000-02-18
    Seismic survey in progress until 17 feb by M/V akademik nikolaj straknov towing 1500 meter long cable along…
  9. HYDROLANT 568/002000-02-15 → 2000-02-18
    Seismic survey in progress until 17 feb by M/V ramform explorer and M/V kondor explorer towing eight 4800…
  10. HYDROLANT 558/002000-02-14 → 2000-02-17
    Seismic survey in progress until 16 feb by M/V geco tau towing 9260 meter long cable in area bound by 21-32S…
  11. HYDROLANT 557/002000-02-14 → 2000-02-17
    Seismic survey in progress until 16 feb by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  12. HYDROLANT 555/002000-02-14 → 2000-02-17
    Seismic survey in progress until 16 feb by M/V ramform victory towing eight 7000 meter long cables in area…
  13. HYDROLANT 554/002000-02-14 → 2000-02-18
    Seismic survey in progress until 17 feb by M/V geco diamond towing eight 6000 meter long cables in area…
  14. HYDROLANT 553/002000-02-14 → 2000-02-17
    Seismic survey in progress until 16 feb by M/V geco eagle towing eight 8000 meter long cables in area bound…
  15. HYDROLANT 552/002000-02-14 → 2000-02-16
    Seismic survey in progress until 15 feb by M/V northern access towing one 8000 meter and four 100 meter long…
  16. HYDROLANT 541/002000-02-13 → 2000-02-16
    Seismic survey in progress until 15 feb by M/V polar search towing 8520 meter long cable in area bound by…
  17. HYDROLANT 538/002000-02-12 → 2000-02-14
    Seismic survey in progress until 13 feb by M/V geco tau towing 9260 meter long cable in area bound by 21-23S…
  18. HYDROLANT 537/002000-02-12 → 2000-02-15
    Seismic survey in progress until 14 feb by M/V akademik nikolaj straknov towing 1500 meter long cable in…
  19. HYDROLANT 536/002000-02-12 → 2000-02-15
    Seismic survey in progress until 14 feb by M/V geo arctic towing 9075 meter long cable in area bound by…
  20. HYDROLANT 535/002000-02-12 → 2000-02-15
    Seismic survey in progress until 14 feb by M/V cgg alize towing 5400 meter long cable in area bound by…
  21. HYDROLANT 526/002000-02-11 → 2000-02-14
    Seismic survey in progress until 13 feb by M/V northern access towing one 8000 meter and four 100 meter long…
  22. HYDROLANT 524/002000-02-11 → 2000-02-14
    Seismic survey in progress until 13 feb by M/V geco diamond towing eight 6000 meter long cables in area…
  23. HYDROLANT 523/002000-02-11 → 2000-02-14
    Seismic survey in progress until 13 feb by M/V ramform victory towing eight 7000 meter long cables in area…
  24. HYDROLANT 522/002000-02-11 → 2000-02-14
    Seismic survey in progress until 13 feb by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  25. HYDROLANT 521/002000-02-11 → 2000-02-13
    Seismic survey in progress until 12 feb by M/V ramform explorer towing eight 4800 meter long cables in area…
  26. HYDROLANT 518/002000-02-11 → 2000-02-14
    Seismic survey in progress until 13 feb by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  27. HYDROLANT 517/002000-02-11 → 2000-02-14
    Seismic survey in progress until 13 feb by M/V western atlas towing 5000 meter long cable in area bound by…
  28. HYDROLANT 516/002000-02-11 → 2000-02-16
    Seismic survey in progress until 15 feb by M/V western kenda towing 8000 meter long cable in area bound by…
  29. HYDROLANT 506/002000-02-10 → 2000-02-13
    Seismic survey in progress until 12 feb by M/V polar search towing 8520 meter long cable in area bound by…
  30. HYDROLANT 500/002000-02-09 → 2000-02-11
    Seismic survey in progress until 10 feb by M/V akademik nikolaj straknov towing 1500 meter long cable in…
  31. HYDROLANT 499/002000-02-09 → 2000-02-12
    Seismic survey in progress until 11 feb by M/V geo arctic towing 16700 meter long cable in area bound by…
  32. HYDROLANT 498/002000-02-09 → 2000-02-11
    Seismic survey in progress until 10 feb by M/V geco diamond towing eight 6000 meter long cables in area…
  33. HYDROLANT 497/002000-02-09 → 2000-02-12
    Seismic survey in progress until 11 feb by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  34. HYDROLANT 478/002000-02-08 → 2000-02-11
    Seismic survey in progress until 10 feb by M/V northerm access towing one 8000 meter and four 100 meter long…
  35. HYDROLANT 477/002000-02-08 → 2000-02-11
    Seismic survey in progress until 10 feb by M/V ramform victory towing eight 7000 meter long cables in area…
  36. HYDROLANT 475/002000-02-08 → 2000-02-11
    Seismic survey in progress until 10 feb by M/V ramform vanguard towing ten 4800 meter long cables in area…
  37. HYDROLANT 473/002000-02-08 → 2000-02-11
    Seismic survey in progress until 10 feb by M/V ramform viking and M/V kondor explorer towing 4500 meter long…
  38. HYDROLANT 472/002000-02-08 → 2000-02-11
    Seismic survey in progress until 10 feb by M/V ramform explorer towing eight 4800 meter long cables in area…
  39. HYDROLANT 468/002000-02-08 → 2000-02-10
    Seismic survey in progress until 09 feb by M/V polar search towing 8520 meter long cable in area bound by…
  40. HYDROLANT 461/002000-02-07 → 2000-02-09
    Seismic survey in progress until 08 feb by M/V akademik nikolaj straknov towing 1500 meter long cable in…
  41. HYDROLANT 455/002000-02-06 → 2000-02-09
    Seismic survey in progress until 08 feb by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  42. HYDROLANT 454/002000-02-06 → 2000-02-09
    Seismic survey in progress until 08 feb by M/V geco diamond towing eight 6000 meter long cables in area…
  43. HYDROLANT 453/002000-02-06 → 2000-02-09
    Seismic survey in progress until 08 feb by M/V geo arctic towing 16700 meter long cable in area bound by…
  44. HYDROLANT 449/002000-02-05 → 2000-02-08
    Seismic survey in progress until 07 feb by M/V western atlas towing 5000 meter long cable in area bound by…
  45. HYDROLANT 444/002000-02-05 → 2000-02-08
    Seismic survey in progress until 07 feb by M/V northern access towing one 8000 meter and four 100 meter long…
  46. HYDROLANT 443/002000-02-05 → 2000-02-08
    Seismic survey in progress until 07 feb by M/V ramform vanguard towing 4500 meter long cable in area bound…
  47. HYDROLANT 439/002000-02-05 → 2000-02-08
    Seismic survey in progress until 07 feb by M/V ramform explorer towing 4500 meter long cable in area bound…
  48. HYDROLANT 438/002000-02-05 → 2000-02-08
    Seismic survey in progress until 07 feb by MV ramform victory towing 6500 meter long cable in area bound by…
  49. HYDROLANT 427/002000-02-04 → 2000-02-07
    Seismic survey in progress until 06 feb by M/V polar search towing 8520 meter long cable in area bound by…
  50. HYDROLANT 426/002000-02-04 → 2000-02-06
    Seismic survey in progress until 06 feb by M/V geco diamond towing eight 6000 meter long cables in area…

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.

Cable & pipeline work in the South Atlantic Ocean — page 100 · seahazards